Cisco AGS+, Hardware Installation And Maintenance

Page: 42 / 146

Making
External
Connections
Exteruial
CabUig
GudeHnes
The
following guidelines
will assist you in properly connecting
the external
network
cables
to
your
chassis
Make
certain
you
connect the colTect
interface
types
The
different interfaces
used with the chassis
have
unique
connectors so
it
will
be
physically
impossible to improperly
connect
them
however exercise caution
when
connecting
the cables
to
avoid the
possibility
of connecting
an external interface
cable
to
the
wrong
interface Refer
to
the following
section
Interface Connectors
to verify
your
cable
configurations
Verify the interface
unit
numbering on
the cables
you connect
Each
interface port should
have
uniquely
numbered
label
within each
type of
interface
used
Ethernet serial
and
so forth For example if
four Ethernet ports
are
installed in the chassis the
four cables
would be labeled Ethernet
through
Ethernet while
six serial
cables
would be
labeled Serial
through
Serial This
numbering
is important to
maintain
the
correct order of
interfaces
based
upon
how
the system
assigns interface
addresses
also
called unit addresses
Avoid
crossing
high-power cables with interface
cables
Crossing
high-power cables with
interface
cables can cause
interference
in
some
interface
types
It
will
not always
be
possible to
avoid
this but
try to
prevent it
whenever
possible
Do
not defeat cable
strain-relief systems
Most
interface
types provide
some
type of
strain relief to prevent
the cables
from
being
accidentally
disconnected
Among
these types of
strain relief
are
slide
fasteners
on Ethernet
AUI
cables
and
screw-type
fasteners on
serial
cables
To
prevent
potential problems
caused
by
inadvertent cable
disconnection use any and all strain-relief
devices provided
Verify proper
interface
cabling before starting
the system
Before
applying power to the
system
prevent unnecessary
problems
or component damage by
double-checking
the cabling
used
Verify all cabling
limitations
before applying
power to
the
system
When
setting
up
your
system you must
consider
number
of factors related
to the cabling
required for
your connections
For example
when
using
RS-232
connections
be aware
of the
distance
and
electromagnetic
interference
limitations for
signaling
These
cabling
considerations
are
described
in Chapter
Preparing for
Installation
Connect
the power
cord
to
the proper receptacle
The power
supply
is
factory-configured for either
110
VAC
or
240
VAC
operation
different
power supply rated at
230
VAC
is
used in the
United
Kingdom
All
units
include 6-foot
electrical power cord
label near the
power input indicates the correct voltage
for
your unit
Warning
voltage
mismatch
can cause equipment damage
and pose
fire
hazard
if
the voltage
indicated on
the
chassis label
is
different
from
the
power
outlet
voltage
do
not connect
the chassis
to that receptacle
Contact customer service representative for
information on
how
to proceed
After
installing
all
of the rear-panel cables
you can begin
the configuration
of
the
router
by using
the
optional
Router Products
Getting Started
Guide
publication
If the
chassis
fails to
operate
in
the
manner
specified
refer to
Chapter
Troubleshooting the Initial
Hardware Configuration
to help
isolate the problem and
then notify customer service representative
Installing
the
Chassis
3-3